/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.netbeans.modules.db.sql.visualeditor.querymodel;

/*
 * UnaryExpression.java
 *
 * Created on March 23, 2005, 3:44 PM
 */

// a UnaryExpression is an Expression with one operand
// In the query is either a NOT or a SetFunction (MAX, MIN, etc...)
// The main usage of this interface is to walk the unary expression further (i.e. NOT (a AND b))
public interface UnaryExpression extends Expression {
    public Expression getOperand();
}
